Clinical observation of the use of portable pulmonary function test trainer in patients with stable COPD

by Yuhua Wu, Jian Zhou, Mengyu Ma, Jing Xie, Ahong Wang, Jing Li, Xinhua Li, Meijia Chang, Xiaoli Pei, Qiaomeng Ji, Ge Zhang, Jing Wang, Na Li
Published 2019-12-01